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Fibroblast activation protein

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https://www.readbyqxmd.com/read/28431044/leonurine-attenuates-fibroblast-like-synoviocyte-mediated-synovial-inflammation-and-joint-destruction-in-rheumatoid-arthritis
#1
Nan Li, Qiang Xu, Qingping Liu, Dongmei Pan, Yubao Jiang, Minying Liu, Mingling Liu, Hanshi Xu, Changsong Lin
Objective.: To explore the role of leonurine in the regulation of synovial inflammation and joint destruction inRA. Methods.: Fibroblast-like synoviocytes were isolated from synovial tissue from RA patients. Pro-inflammatory cytokine and MMP expression was evaluated using real-time PCR and a cytometric bead array. Cell migration and invasion in vitro were measured using the Boyden chamber method and the scratch assay, respectively. Protein expression was measured by western blotting...
April 18, 2017: Rheumatology
https://www.readbyqxmd.com/read/28430665/p2x7-receptor-and-nlrp3-inflammasome-activation-in-head-and-neck-cancer
#2
Ju Young Bae, Sang-Woo Lee, Yong-Hwan Shin, Jong-Ho Lee, Jeong Won Jahng, Kyungpyo Park
In this study, we investigated purinergic receptor P2X7 and NACHT, LRR and PYD domains-containing protein 3 (NLRP3) inflammasome expressions, and their role in head and neck cancer. We found upregulation of purinergic receptor P2X7 and all NLRP3 inflammasome components in biopsied head and neck squamous cell carcinoma tissues. Similarly, the expression of purinergic receptor P2X7, apoptosis-associated speck-like protein containing CARD, and pro-form caspase 1 in A253 cells derived from epidermoid carcinoma were highly upregulated in comparison to normal Human Salivary Gland cell line...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28428174/klotho-an-anti-aging-molecule-attenuates-oxidant-induced-alveolar-epithelial-cell-mtdna-damage-and-apoptosis
#3
Seok-Jo Kim, Paul Cheresh, Mesut Eren, Renea P Jablonski, Anjana Yeldandi, Karen M Ridge, Gr Scott Budinger, Dong-Hyun Kim, Myles S Wolf, Douglas Vaughan, David W Kamp
Alveolar epithelial cell (AEC) apoptosis and inadequate repair resulting from 'exaggerated' lung aging and mitochondrial dysfunction are critical determinants promoting lung fibrosis. α-Klotho, which is an anti-aging molecule that is expressed predominantly in the kidney and secreted in the blood, can protect lung epithelial cells against hyperoxia-induced apoptosis. We reasoned that Klotho protects AEC exposed to oxidative stress in part by maintaining mitochondrial DNA (mtDNA) integrity and mitigating apoptosis...
April 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28427645/ultrasound-assisted-extraction-of-achyrocline-satureioides-prevents-contrast-induced-nephropathy-in-mice
#4
Ketheley L Guss, Stefano Pavanni, Bruno Prati, Lucas Dazzi, Jairo P de Oliveira, Breno V Nogueira, Thiago M C Pereira, Marcio Fronza, Denise C Endringer, Rodrigo Scherer
Achyrocline satureioides or Macela, has been largely used in traditional folk medicine in Brazil as an anti-inflammatory agent and to treat various digestive disorders. The aim of the present study was to evaluate the preventive action of the extracts of A. satureioides obtained by maceration and ultrasound-assisted extraction, quercetin and N-acetylcysteine against contrast-induced nephropathy in mice. The antioxidant activity, cytotoxicity and inhibition of nitric oxide (NO) production in macrophages were evaluated...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28426090/oleuropein-down-regulated-il-1%C3%AE-induced-inflammation-and-oxidative-stress-in-human-synovial-fibroblast-cell-line-sw982
#5
Maria Luisa Castejón, Maria Ángeles Rosillo, Tatiana Montoya, Alejandro González-Benjumea, Jose Maria Fernández-Bolaños, Catalina Alarcón-de-la-Lastra
Rheumatoid arthritis (RA) is a chronic and systemic inflammatory autoimmune disease mainly characterized by aggressive hyperproliferation of synovial fibroblasts (SFs). It is accompained by a massive infiltration of inflammatory immune cells inducing progressive matrix degradation, destruction of cartilage and bone erosion through the production of inflammatory mediators. Oleuropein is the most prevalent phenolic component in olive leaves, seed, pulp and peel of unripe olives and is responsible for the characteristic bitter taste of unprocessed olives...
April 20, 2017: Food & Function
https://www.readbyqxmd.com/read/28424684/modulation-of-human-leukocyte-antigen-c-by-human-cytomegalovirus-stimulates-kir2ds1-recognition-by-natural-killer-cells
#6
Kattria van der Ploeg, Chiwen Chang, Martin A Ivarsson, Ashley Moffett, Mark R Wills, John Trowsdale
The interaction of inhibitory killer cell Ig-like receptors (KIRs) with human leukocyte antigen (HLA) class I molecules has been characterized in detail. By contrast, activating members of the KIR family, although closely related to inhibitory KIRs, appear to interact weakly, if at all, with HLA class I. KIR2DS1 is the best studied activating KIR and it interacts with C2 group HLA-C (C2-HLA-C) in some assays, but not as strongly as KIR2DL1. We used a mouse 2B4 cell reporter system, which carries NFAT-green fluorescent protein with KIR2DS1 and a modified DAP12 adaptor protein...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28423042/transforming-growth-factor-%C3%AE-1-enhances-heme-oxygenase-1-expression-in-human-synovial-fibroblasts-by-inhibiting-microrna-519b-synthesis
#7
Shu-Jui Kuo, Wei-Hung Yang, Shan-Chi Liu, Chun-Hao Tsai, Horng-Chaung Hsu, Chih-Hsin Tang
BACKGROUND: Osteoarthritis (OA) is manifested by synovial inflammation and cartilage destruction that is directly linked to synovitis, joint swelling and pain. In the light of the role of synovium in the pathogenesis and the symptoms of OA, synovium-targeted therapy is a promising strategy to mitigate the symptoms and progression of OA. Transforming growth factor beta 1 (TGF-β1), a secreted homodimeric protein, possesses unique and potent anti-inflammatory and immune-regulatory properties in many cell types...
2017: PloS One
https://www.readbyqxmd.com/read/28422762/silencing-smoc2-ameliorates-kidney-fibrosis-by-inhibiting-fibroblast-to-myofibroblast-transformation
#8
Casimiro Gerarduzzi, Ramya K Kumar, Priyanka Trivedi, Amrendra K Ajay, Ashwin Iyer, Sarah Boswell, John N Hutchinson, Sushrut S Waikar, Vishal S Vaidya
Secreted modular calcium-binding protein 2 (SMOC2) belongs to the secreted protein acidic and rich in cysteine (SPARC) family of matricellular proteins whose members are known to modulate cell-matrix interactions. We report that SMOC2 is upregulated in the kidney tubular epithelial cells of mice and humans following fibrosis. Using genetically manipulated mice with SMOC2 overexpression or knockdown, we show that SMOC2 is critically involved in the progression of kidney fibrosis. Mechanistically, we found that SMOC2 activates a fibroblast-to-myofibroblast transition (FMT) to stimulate stress fiber formation, proliferation, migration, and extracellular matrix production...
April 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28421158/cytotoxicity-of-zardaverine-in-embryonal-rhabdomyosarcoma-from-a-costello-syndrome-patient
#9
Donna M Cartledge, Katherine M Robbins, Katherine M Drake, Rachel Sternberg, Deborah L Stabley, Karen W Gripp, E Anders Kolb, Katia Sol-Church, Andrew D Napper
Costello syndrome (CS) patients suffer from a very high 10% incidence of embryonal rhabdomyosarcoma (ERMS). As tools to discover targeted therapeutic leads, we used a CS patient-derived ERMS cell line (CS242 ERMS) harboring a homozygous p.G12A mutation in HRAS, and a control cell line derived from the same patient comprising non-malignant CS242 fibroblasts with a heterozygous p.G12A HRAS mutation. A library of 2,000 compounds with known pharmacological activities was screened for their effect on CS242 ERMS cell viability...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28420763/reduced-body-weight-gain-in-ubiquilin-1-transgenic-mice-is-associated-with-increased-expression-of-energy-sensing-proteins
#10
Fangfang Qiao, Kirsty R Longley, Shelley Feng, Sabrina Schnack, Hongbo Gao, Yifan Li, Evelyn H Schlenker, Hongmin Wang
Ubiquilin-1 (Ubqln1), a ubiquitin-like protein, is implicated in a variety of pathophysiological processes, but its role in mediating body weight gain or metabolism has not been determined. Here, we demonstrate that global overexpression of Ubqln1 in a transgenic (Tg) mouse reduces the animal's body weight gain. The decreased body weight gain in Tg mice is associated with lower visceral fat content and higher metabolic rate. The Ubqln1 Tg mice exhibited reduced leptin and insulin levels as well as increased insulin sensitivity manifested by homeostatic model assessment of insulin resistance...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28420162/hepatocyte-growth-factor-a-key-tumor-promoting-factor-in-the-tumor-microenvironment
#11
REVIEW
Benjamin Yaw Owusu, Robert Galemmo, James Janetka, Lidija Klampfer
The tumor microenvironment plays a key role in tumor development and progression. Stromal cells secrete growth factors, cytokines and extracellular matrix proteins which promote growth, survival and metastatic spread of cancer cells. Fibroblasts are the predominant constituent of the tumor stroma and Hepatocyte Growth Factor (HGF), the specific ligand for the tyrosine kinase receptor c-MET, is a major component of their secretome. Indeed, cancer-associated fibroblasts have been shown to promote growth, survival and migration of cancer cells in an HGF-dependent manner...
April 17, 2017: Cancers
https://www.readbyqxmd.com/read/28419360/p4ha1-mutations-cause-a-unique-congenital-disorder-of-connective-tissue-involving-tendon-bone-muscle-and-the-eye
#12
Yaqun Zou, Sandra Donkervoort, Antti M Salo, A Reghan Foley, Aileen M Barnes, Ying Hu, Elena Makareeva, Meganne E Leach, Payam Mohassel, Jahannaz Dastgir, Matthew A Deardorff, Ronald D Cohn, Wendy O DiNonno, Fransiska Malfait, Monkol Lek, Sergey Leikin, Joan C Marini, Johanna Myllyharju, Carsten G Bönnemann
Collagen prolyl 4-hydroxylases (C-P4Hs) play a central role in the formation and stabilization of the triple helical domain of collagens. P4HA1 encodes the catalytic α(I) subunit of the main C-P4H isoenzyme (C-P4H-I). We now report human bi-allelic P4HA1 mutations in a family with a congenital-onset disorder of connective tissue, manifesting as early-onset joint hypermobility, joint contractures, muscle weakness and bone dysplasia as well as high myopia, with evidence of clinical improvement of motor function over time in the surviving patient...
April 13, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28419140/niche-matters-the-comparison-between-bone-marrow-stem-cells-and-endometrial-stem-cells-and-stromal-fibroblasts-reveal-distinct-migration-and-cytokine-profiles-in-response-to-inflammatory-stimulus
#13
Masuma Khatun, Anna Sorjamaa, Marika Kangasniemi, Meeri Sutinen, Tuula Salo, Annikki Liakka, Petri Lehenkari, Juha S Tapanainen, Olli Vuolteenaho, Joseph C Chen, Siri Lehtonen, Terhi T Piltonen
OBJECTIVE: Intrinsic inflammatory characteristics play a pivotal role in stem cell recruitment and homing through migration where the subsequent change in niche has been shown to alter these characteristics. The bone marrow mesenchymal stem cells (bmMSCs) have been demonstrated to migrate to the endometrium contributing to the stem cell reservoir and regeneration of endometrial tissue. Thus, the aim of the present study was to compare the inflammation-driven migration and cytokine secretion profile of human bmMSCs to endometrial mesenchymal stem cells (eMSCs) and endometrial fibroblasts (eSFs)...
2017: PloS One
https://www.readbyqxmd.com/read/28418782/knockdown-of-il-8-provoked-premature-senescence-of-placenta-derived-mesenchymal-stem-cells
#14
Juan-Juan Li, Feng-Xia Ma, You-Wei Wang, Fang Chen, Shi-Hong Lu, Ying Chi, Wen-Jing Du, Bao-Quan Song, Liang-Ding Hu, Hu Chen, Zhong-Chao Han
Mesenchymal stem cells (MSCs) have shown promise for use in cell therapy, and due to their tumor tropism can serve as vehicles for delivering therapeutic agents to tumor sites. Because interleukin-8 (IL-8) is known to mediate the protumor effect of MSCs, elimination of IL-8 secretion by MSCs may enhance their safety for use in cancer gene therapy. However, little is known concerning the effect of endogenously secreted IL-8 on MSCs. We performed studies using placenta-derived MSCs (PMSCs) to determine whether knockdown of IL-8 would influence their biological activity...
April 18, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28418498/suppression-by-an-rar-%C3%AE-agonist-of-collagen-degradation-mediated-by-corneal-fibroblasts
#15
Kazuhiro Kimura, Hongyan Zhou, Tomoko Orita, Masaaki Kobayashi, Teruo Nishida, Koh-Hei Sonoda
Purpose: To examine the role of retinoic acid receptor (RAR) isoforms in interleukin-1β (IL-1β)-induced collagen degradation by corneal fibroblasts. Methods: Primary rabbit corneal fibroblasts embedded in a three-dimensional collagen gel were incubated with or without all-trans retinoic acid (ATRA), the RAR-α agonist Am580, the RAR-β agonist AC55649, or the RAR-γ agonist R667. Collagen degradation was determined by measurement of hydroxyproline produced in acid hydrolysates of culture supernatants...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28418088/rack1-forms-a-complex-with-fgfr1-and-pkm2-and-stimulates-the-growth-and-migration-of-squamous-lung-cancer-cells
#16
Chengzhi Zhou, Tao Chen, Zhanhong Xie, Yinyin Qin, Yangming Ou, Jiexia Zhang, Shiyue Li, Rongchang Chen, Nanshan Zhong
Phosphorylation of Pyruvate Kinase M2 (PKM2) on Tyr105 by fibroblast growth factor receptor 1 (FGFR1) has been shown to promote its nuclear localization as well as cell growth in lung cancer. Better understanding the regulation of this process would benefit the clinical treatment for lung cancer. Here, it has been found that the adaptor protein receptor for activated PKC kinase (RACK1) formed a complex with FGFR1 and PKM2, and activated the FGFR1/PKM2 signaling. Knocking down the expression of RACK1 impaired the phosphorylation on Tyr105 of PKM2 and inhibited the growth and migration of lung cancer cells, while over-expression of RACK1 in lung cancer cells led to the resistance to Erdafitinib...
April 18, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28417072/atypical-juvenile-presentation-of-gm2-gangliosidosis-ab-in-a-patient-compound-heterozygote-for-c-259g%C3%A2-%C3%A2-t-and-c-164c%C3%A2-%C3%A2-t-mutations-in-the-gm2a-gene
#17
Carla Martins, Catherine Brunel-Guitton, Anne Lortie, France Gauvin, Carlos R Morales, Grant A Mitchell, Alexey V Pshezhetsky
GM2-gangliosidosis, AB variant is an extremely rare autosomal recessive inherited disorder caused by mutations in the GM2A gene that encodes GM2 ganglioside activator protein (GM2AP). GM2AP is necessary for solubilisation of GM2 ganglioside in endolysosomes and its presentation to β-hexosaminidase A. Conversely GM2AP deficiency impairs lysosomal catabolism of GM2 ganglioside, leading to its storage in cells and tissues. We describe a 9-year-old child with an unusual juvenile clinical onset of GM2-gangliosidosis AB...
June 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28416613/hypoxia-inducible-factor-1%C3%AE-activates-insig-2-transcription-for-degradation-of-hmg-coa-reductase-in-the-liver
#18
Seonghwan Hwang, Andrew D Nguyen, Youngah Jo, Luke J Engelking, James Brugarolas, Russell A DeBose-Boyd
Cholesterol synthesis is a highly oxygen-consuming process. As such, oxygen deprivation (hypoxia) limits cholesterol synthesis through incompletely understood mechanisms mediated by the oxygen-sensitive transcription factor hypoxia-inducible factor (HIF)-1α. We show here that HIF-1α links pathways for oxygen sensing and feedback control of cholesterol synthesis in human fibroblasts by directly activating transcription of the INSIG-2 gene. Insig-2 is one of two endoplasmic reticulum (ER) membrane proteins that inhibit cholesterol synthesis by mediating sterol-induced ubiquitination and subsequent ER-associated degradation of the rate-limiting enzyme in the pathway, HMG CoA reductase (HMGCR)...
April 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28416318/basic-fibroblast-growth-factor-regulates-gene-and-protein-expression-related-to-proliferation-differentiation-and-matrix-production-of-human-dental-pulp-cells
#19
Ya-Ching Chang, Mei-Chi Chang, Yi-Jane Chen, Ji-Uei Liou, Hsiao-Hua Chang, Wei-Ling Huang, Wan-Chuen Liao, Chiu-Po Chan, Po-Yuan Jeng, Jiiang-Huei Jeng
INTRODUCTION: Basic fibroblast growth factor (bFGF) plays differential effects on the proliferation, differentiation, and extracellular matrix turnover in various tissues. However, limited information is known about the effect of bFGF on dental pulp cells. The purposes of this study were to investigate whether bFGF influences the cell differentiation and extracellular matrix turnover of human dental pulp cells (HDPCs) and the related gene and protein expression as well as the role of the mitogen-activated protein kinase (MEK)/extracellular-signal regulated kinase (ERK) signaling pathway...
April 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28415791/evaluation-of-the-circulating-level-of-fibroblast-activation-protein-%C3%AE-for-diagnosis-of-esophageal-squamous-cell-carcinoma
#20
Yuehua Liao, Shan Xing, Banglao Xu, Wanli Liu, Ge Zhang
To evaluate whether circulating fibroblast activation protein α (FAPα) could serve as a biomarker for the diagnosis of esophageal squamous cell carcinoma (ESCC), enzyme-linked immunosorbent assay (ELISA) was used to detect plasma FAPα in 556 participants including ESCC group, benign esophageal disease group, healthy controls and other cancer controls group. The levels of plasma FAPα were significantly decreased in ESCC patients (P < 0.001) and showed a positive correlation with HDL-C levels (R = 0.372, P < 0...
March 16, 2017: Oncotarget
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